Comparison of ventilation effects by mask-sealing methods during bag-valve-mask ventilation

백-밸브-마스크 환기 시 마스크 밀착방법에 따른 환기효과 비교

  • Lee, Nam-Jong (Department of Paramedic Science, Korea National University of Transportation) ;
  • Baek, Mi-Lye (Department of Paramedic Science, Korea National University of Transportation)
  • 이남종 (한국교통대학교 응급구조학과) ;
  • 백미례 (한국교통대학교 응급구조학과)
  • Received : 2018.03.09
  • Accepted : 2018.04.15
  • Published : 2018.04.30


Purpose: The purpose of this study was to compare the tidal volumes and airway pressures of 3 mask-sealing methods (one hand C-E, two hands C-E, and one hand O-E) for ventilation treatment. Methods: The study subjects were 45 paramedic students. Tidal volume was measured for the three sealing methods by setting a ventilator, connecting it to the masks for 2 minutes, and using Respi-trainer software. Results: Regarding general characteristics, the group of men, in upper grades, and with practical training experience and experience and experience in the implementation of bag-valve-mask ventilation provided higher tidal volumes. Regarding physical characteristics, larger hands and greater grip strength correlated with higher tidal volume. Two hands C-E generated the highest tidal volume of $483.78{\pm}34.14mL$, one hand O-E generated $449.59{\pm}51.09mL$ and one hand C-E generated $394.31{\pm}68.95mL$. Conclusion: Means of tidal volumes were statistically significantly different based on mask sealing methods (p<.001). Two hand C-E was performed by the two-persons task and was suggested as the most effective method. For the one-person task, one hand O-E was the more effective method compared to the previous one hand C-E.


Bag-valve-mask;Mask sealing;Ventilation;Tidal volume


Supported by : 한국교통대학교


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